Soudal Silicone U General Purpose Silicone Aluminum Silver 280 g (30 Pieces)

Soudal Silicone U General‑Purpose Silicone – Aluminium Silver, 280 g (Box of 30)

Soudal Silicone U Aluminium Silver is a high‑performance, one‑component, acetoxy‑cure silicone sealant specially formulated for modern and industrial designs. Its bright metallic silver shade matches perfectly with aluminium, stainless steel and silver‑finished surfaces; delivering long‑term resistance to UV radiation, extreme temperatures and outdoor weathering. Supplied in standard 280 g cartridges, boxes of 30 units.

Technical Specifications

• Brand: Soudal
• Product Name: Silicone U General‑Purpose Silicone
• Colour: Aluminium Silver – Metallic Silver
• Chemical Base: Polysiloxane, acetoxy‑curing
• Pack Format: 280 g standard cartridge
• Box Contents: 30 Cartridges
• Surface Skin Time: Approx. 7 minutes (@ +20 °C / 65 % RH)
• Cure Rate: 2 mm depth in 24 hours
• Hardness (Shore A): 23 ± 5
• Total Movement Capability: ±25 %
• Elongation at Break: 800 %
• Application Temperature: +5 °C to +35 °C
• Service Temperature Range: -60 °C to +150 °C
• UV Resistance: Excellent — will not fade or degrade
• Adhesion Compatibility: Glass, ceramic, aluminium, stainless steel, PVC, painted surfaces

Applications

• Joint sealing for aluminium joinery, frames and facade cladding
• Sealing joints around stainless steel, metal and silver‑toned surfaces
• Modern furniture and display cases made from glass, metal and composite materials
• Penetration points for metal ductwork in air‑conditioning, ventilation and heating systems
• Interior decoration with an industrial‑style finish
• Roof, eaves and metal construction connection joints
• General building, renovation, maintenance and workshop applications

Key Advantages

• Metallic Aluminium Silver Finish: Sleek modern silver tone creates a flawless aesthetic match with aluminium, steel and all silver‑finished surfaces — no extra colour‑matching needed
• Superior UV Stability: Retains its brightness and colour even in direct outdoor sunlight for years — no fading, dulling or discolouration
• Consistent Performance at Extremes: Maintains elasticity and sealing integrity from -60 °C to +150 °C — ideal for heating systems, cold‑climate zones and exterior use
• Permanent High Elasticity: ±25 % movement tolerance and 800 % elongation fully absorb thermal expansion, building settlement and vibration — never cracks or splits once cured
• Broad Surface Compatibility: Strong primer‑free adhesion to glass, ceramic, aluminium, stainless steel, rigid PVC and painted surfaces — cuts preparation time
• Fast, Smooth Application: Skins over in just 7 minutes; boosts productivity on repetitive jobs and delivers a uniform, professional finish
• Economical 30‑Unit Box: Lower unit pricing for regular applicators, sites and maintenance teams; eliminates stock shortages

Application Guidelines

• Surfaces must be fully dry, clean and free from dust, grease and all old sealant residue before starting
• Apply masking tape along joint edges for crisp lines; remove tape at a 45° angle immediately after tooling
• Cut the nozzle to match joint width; apply with a standard sealant gun at steady, even pressure
• Smooth and finish within the first 5–7 minutes using a suitable tool; marks will remain once skinned over
• Keep dry throughout the full cure cycle (approx. 24 hours); extend for deeper beads
• Provide good ventilation during application and curing; leave windows open
• Not recommended for natural stone (marble, travertine) — acetoxy silicones may stain; use neutral‑cure silicone for such surfaces

Frequently Asked Questions

How does Aluminium Silver differ from Grey?
Aluminium Silver is a bright metallic shade designed to visually match aluminium and stainless steel. Standard grey is a flat, neutral tone better suited to concrete, render and similar surfaces.

When does it become water‑resistant?
Surface skins in 7 minutes; light contact after 1 hour; allow full 24‑hour cure before continuous water exposure.

Can it be painted over?
Silicone‑based products do not accept paint; select the matching shade directly or use a paintable acrylic sealant if colour adjustment is needed.

Will it cause corrosion on metal?
The acetoxy formulation may cause slight corrosion on some sensitive metals under prolonged damp or enclosed conditions; choose neutral‑cure Silicone N series for critical applications.

Are other colours available?
Yes — white, clear, anthracite grey, bronze, brown and more; select the shade to match your project.